package httpconnect;

import java.io.*;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

/**
 * Created by zy on 2018/10/17.
 */
public class main {
    public static void main(String arg[]) throws Exception {
        Book book = new Book();
        book.start();
    }

    public void zip()throws Exception{
        ZipOutputStream zipOutputStream = new ZipOutputStream(new FileOutputStream("fileName"));
        BufferedOutputStream bos = new BufferedOutputStream(zipOutputStream);
        File sourceFile = new File("new fileName");
        compress(zipOutputStream,bos,sourceFile,sourceFile.getName());
        bos.close();zipOutputStream.close();
    }

    public void compress(ZipOutputStream out, BufferedOutputStream bos, File sourceFile, String base) throws Exception {
        //如果路径为目录（文件夹）
        if (sourceFile.isDirectory()) {

            //取出文件夹中的文件（或子文件夹）
            File[] fList = sourceFile.listFiles();
            if (fList.length == 0)//如果文件夹为空，则只需在目的地zip文件中写入一个目录进入点
            {
                System.out.println(base + "/");
                out.putNextEntry(new ZipEntry(base + "/"));
            } else//如果文件夹不为空，则递归调用compress，文件夹中的每一个文件（或文件夹）进行压缩
            {
                for (int i = 0; i < fList.length; i++) {
                    compress(out, bos, fList[i], base + "/" + fList[i].getName());
                }
            }
        } else//如果不是目录（文件夹），即为文件，则先写入目录进入点，之后将文件写入zip文件中
        {
            out.putNextEntry(new ZipEntry(base));
            FileInputStream fos = new FileInputStream(sourceFile);
            BufferedInputStream bis = new BufferedInputStream(fos);

            int tag;
            System.out.println(base);
            //将源文件写入到zip文件中
            while ((tag = bis.read()) != -1) {
                bos.write(tag);
            }
            bis.close();
            fos.close();
        }
    }
}
